Thermo Scientific CryoPlus Freezer Rack Boxes 5.5 x 26 x 5.5 cm Lot of 11 Cardboard Boxes

Thermo Scientific™ CryoPlus™ 2-Inch Cryogenic Storage Racks, 5.5 x 26 x 5.5 cm – Lot of 11 Cardboard Boxes

The Thermo Scientific™ 4000042 (historically cataloged under the Thermo Scientific™ CryoPlus™ and CryoMed™ liquid nitrogen storage lines) is a specialized, ultra-low temperature cardboard storage box designed for the secure preservation of biological samples within vapor or liquid phase LN2 freezers and mechanical ultra-low temperature (ULT) freezers. Fabricated from premium, heavy-duty moisture-resistant cardboard and finished with a protective water-repellent exterior coating, these boxes are engineered to withstand extreme cryogenic thermal cycling without delaminating, warping, or absorbing ambient humidity. Measuring 5.5 x 26 x 5.5 cm, this specialized horizontal/vertical drawer-style footprint fits seamlessly into standardized liquid nitrogen inventory racks and canister systems. Supplied as a targeted laboratory lot of 11 individual cardboard cryo-boxes, this system is a fundamental provision for biobanks, cell repositories, and clinical laboratories managing long-term sample archival.

Technical Performance & Material Integrity

• Ultra-Low Temperature Cardboard Matrix: Fabricated from high-density, sulfur-free cardboard fiberboard. The structural core is specifically selected for ultra-low temperature application stability, resisting structural degradation down to liquid-nitrogen temperatures of minus 196 degrees Celsius.
• Protective Moisture-Resistant Overcoat: Features a specialized, water-repellent exterior coating that acts as a physical barrier against condensation during sample retrieval, preventing liquid ingress and subsequent fiberboard softening.
• Cryogenic Air Venting Design: Engineered with small, precision-punched drainage and ventilation holes. This physical profile allows rapid liquid nitrogen drainage during rack elevation and accelerates temperature equilibration when specimens are returned to storage.
• Uniform Spatial Footprint: Precision-cut to dimensions of 5.5 x 26 x 5.5 cm, allowing smooth sliding insertion and removal from high-density cryogenic racking systems without catching on structural welds or partitions.

Product Specifications

• Catalog Number / MPN: 4000042 (Alternative Model: Model 4000042 CryoPlus Accessory Series)
• Primary Manufacturer: Thermo Scientific (Thermo Fisher Scientific)
• Storage Box Footprint: 5.5 cm (width) x 26.0 cm (length) x 5.5 cm (height)
• Material Composition: Ultra-low temperature moisture-resistant cardboard fiberboard
• Color Presentation: Laboratory White
• Thermal Compatibility: Fully rated for vapor-phase and liquid-phase liquid nitrogen storage down to minus 196 degrees Celsius, as well as mechanical chest and upright ULT freezers down to minus 80 degrees Celsius
• Chemical Compatibility: Inert fiberboard composition prevents chemical outgassing or interactions with sealed micro-vials and storage ampoules
• Sterility and Reusability: Non-sterile; fully reusable under standard clean, dry laboratory operating conditions
• Packaging Configuration: Specially grouped lot of 11 individual cardboard boxes per package unit

Key Benefits & Applications

• High-Density Cryo-Preservation: The ideal modular storage vessel for organizing and partitioning individual sample vials, micro-tubes, or capillary straws inside vertical LN2 tank racks.
• Biobanking and Clinical Repositories: Provides an economical, space-efficient, and highly reliable alternative to heavy polycarbonate containers for long-term genomic, proteomic, and cellular specimen archiving.
• Condensation and Frost Mitigation: The treated exterior surface minimizes frost accumulation on the outer walls of the box, ensuring that printed labels, barcodes, and hand-written annotations remain legible and secure.
• Optimized Inventory Management: Supplied as an 11-box lot to facilitate the complete loading of a standard multi-tier freezer rack column, ensuring uniform indexing and layout design.

All product names, logos, and brands are property of their respective owners. Thermo Scientific, CryoPlus, and CryoMed are trademarks or registered trademarks of Thermo Fisher Scientific.